CITIZEN Record Master rare chronograph with Flyback in stainless steel, Japan around 1970, manual winding, reference 4-570017 Y, unpolished case, screwed down case back, original bracelet with deployant clasp, black dial with tachometer graduation, raised luminous indexes, luminous hands, date, calibre 5702, 21 jewels, diameter approx. 36 mm, length approx. 18 cm, condition 2-3